CN101165429B - All-heat reclamation type cold-hot water energy-saving machine set - Google Patents

All-heat reclamation type cold-hot water energy-saving machine set Download PDF

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CN101165429B
CN101165429B CN2006101228044A CN200610122804A CN101165429B CN 101165429 B CN101165429 B CN 101165429B CN 2006101228044 A CN2006101228044 A CN 2006101228044A CN 200610122804 A CN200610122804 A CN 200610122804A CN 101165429 B CN101165429 B CN 101165429B
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condenser
hot water
water
high pressure
hot
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CN101165429A (en
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聂民
邹宗伍
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China carbon industry (Zhuhai) Co.,Ltd.
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ZHUHAI HUISHENG ENERGY SOURCE TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

This invention discloses a full heat energy recovery type cold and hot water energy saving machine set, which can fully recover and use the waste heat of machine set to produce hot water. The temperature of hot water can be adjusted. It includes cold water machine set, high pressure condenser, heat exchanger, pressure transmitter, pressure adjusting valve, cold water inlet pipeline, I hot water pipeline and II hot water pipeline. The high pressure condenser is connected into the refrigerating medium pipeline between the outlet of compressor and the condenser. The pressure transmitter and pressure adjusting valve are respectively connected into the refrigerating medium pipeline between the high pressure condenser and the condenser. The cold water pipeline is respectively connected into thecold side inlet of high pressure condenser and heat exchanger. The I hot water pipeline and II hot water pipeline are respectively connected into the cold side outlet of high pressure condenser and heat exchanger. This invention can be used in the air conditioner energy saving field.

Description

The complete energy-conservation unit of heat reclamation type hot and cold water
Technical field
The present invention relates to the energy-conservation unit of a kind of full heat reclamation type hot and cold water.
Background technology
Building place common configuration air-conditioning units such as hotel, hotel, dining room, Saunas, swimming pool are used for refrigeration, also will dispose firing equipment in addition and be used to produce production, life and health hot water.On the one hand, the air-conditioning unit is when normal refrigeration, and condensation heat is generally discharged by cooling water or air, and a large amount of heat energy is wasted; On the other hand, what produce the general employing of hot water is that traditional firing equipments such as fire coal, oil burning boiler or boilers heated electrically are produced, and has therefore consumed a large amount of energy; This shows, not only needed to freeze but also needed the occasion of a large amount of hot water at some, process of refrigerastion has a large amount of heat energy to waste, and the process that produces hot water needs to consume other fuel and produces heat energy, caused the dual waste of the energy and resource, not only uneconomical but also contaminated environment, people heightened awareness to energy-saving and cost-reducing necessity and urgency.
At present, the heat recovery that has discharged when also having occurred air conditioner refrigerating is used to produce the unit of hot water, but these sets can not be taken into account on the temperature of producing hot water and recuperation of heat amount, but the high-temperature-hot-water heat that can provide that has can not fully reclaim, it is not high enough that but the heat that has can all reclaim the hot water temperature who produces, generally about 40 ℃, this mainly is because utilize used heat to produce the Energy Efficiency Ratio that hot water must be taken into account air-conditioning unit itself, otherwise though but hot water reaches the reduction of requirement air conditioner refrigerating efficient, and will cause and put the cart before the horse, lost more than gain.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, providing a kind of used heat that can all reclaim and make full use of unit to produce hot water and hot water temperature can the energy-conservation unit of freely regulated full heat reclamation type hot and cold water, this unit can improve compressor efficiency, comprehensive Energy Efficiency Ratio height, energy savings.
The technical solution adopted in the present invention is: the present invention includes handpiece Water Chilling Units, cooling water recirculation system, computer automatic control device, described handpiece Water Chilling Units comprises compressor, condenser, expansion valve, evaporimeter and successively by the refrigeration working medium pipeline composition refrigeration cycle that is connected, described cooling water recirculation system comprises condenser, cooling tower, cooling water pump and successively by the cooling water cycle water pipe composition cooling water circulation loop that is connected, the energy-conservation unit of described full heat reclamation type hot and cold water also comprises high pressure condenser, heat exchanger, pressure transmitter, pressure-regulating valve, flow regulator, temperature transmitter, non-return valve, water circulating pump, the cold water inlet road, the I hot water line, the II hot water line, described high pressure condenser inserts the refrigeration working medium pipeline between described compressor outlet and the described condenser, described pressure transmitter, described pressure-regulating valve inserts the refrigeration working medium pipeline between described high pressure condenser and the described condenser respectively, described high pressure condenser is inserted by described flow regulator respectively in described cold water inlet road, the cold side inlet of described heat exchanger, described I hot water line, described II hot water line is connected to described high pressure condenser respectively, the cold side outlet of described heat exchanger, described temperature transmitter is connected on described II hot water line respectively, on the described I hot water line, advancing of described water circulating pump, outlet respectively with the coolant outlet of described condenser, the hot side-entrance of described heat exchanger is connected, the advancing of described non-return valve, the hot side outlet of outlet and described heat exchanger, the cooling water inlet of described condenser is connected.
The invention has the beneficial effects as follows: because high pressure condenser of the present invention inserts the refrigeration working medium pipeline between described compressor outlet and the described condenser, described pressure transmitter, described pressure-regulating valve inserts the refrigeration working medium pipeline between described high pressure condenser and the described condenser respectively, described high pressure condenser is inserted by described flow regulator respectively in described cold water inlet road, the cold side inlet of described heat exchanger, described I hot water line, described II hot water line is connected to described high pressure condenser respectively, the cold side outlet of described heat exchanger, described temperature transmitter is connected on described II hot water line respectively, on the described I hot water line, advancing of described water circulating pump, outlet respectively with the coolant outlet of described condenser, the hot side-entrance of described heat exchanger is connected, advancing of described non-return valve, the hot side outlet of outlet and described heat exchanger, the cooling water inlet of described condenser is connected, the high temperature that comes out from described compressor outlet, the refrigeration working medium of high pressure at first carries out high pressure condensation heat release for the first time in described high pressure condenser, then carry out condensation heat release for the second time again in described condenser; Refrigeration working medium in described high pressure condenser, carry out the high pressure condensation for the first time in the exothermic process heat absorbed by the cold water of described high pressure condenser and heat up, make from the described high pressure condenser hot water I that comes out, by kind of refrigeration cycle pressure-the enthalpy relation principle as can be known, condensation heat discharging back is for main relevant with condensing pressure with the height of its heat-shift medium temperature, the condensing pressure height, condensation temperature height then, otherwise it is then low, the present invention gathers pressure signal by described pressure transmitter, regulate the described pressure-regulating valve of control by described computer automatic control device and regulate condensing pressure, guarantee under the pairing condensation temperature of design conditions, promptly guarantee under the situation of full recuperation of heat, heat energy is used according to the different pressure classification of control, to satisfy user's different demands, produce the described hot water I that different temperatures requires, described hot water I temperature can be regulated as required even can be produced boiling water; Refrigeration working medium carries out the cooling water that heat is circulated in the condensation exothermic process second time and absorbs and intensification in described condenser and described heat exchanger in described condenser, high-temperature cooling water after the intensification carries out heat exchange with cold water in described heat exchanger, cold water can make hot water II after described heat exchanger flows out, the temperature of described hot water II is 35~40 ℃; From above process as seen, the present invention can carry out the classification utilization with the heat that reclaims, in the temperature range of design, the user can select the hot water of different temperatures, easy to use, the domestic type product can allow the user just commonly used cold in, the domestic hot-water can be provided, boiling water can also be provided, ensure the desired condensation temperature of design simultaneously, thereby guarantee the normal operation of whole kind of refrigeration cycle, but, the present invention produces hot water and hot water temperature's free adjustment so all reclaiming and make full use of the used heat of unit, when reclaiming used heat, make this unit can improve compressor efficiency, therefore comprehensive Energy Efficiency Ratio height, energy savings;
Because the present invention can heat water simultaneously when freezing summer, in the hotel, building place such as hotel, dining room, Saunas, swimming pool uses alternative traditional homogeneous solution-type reactor equipment that heats, release heats the energy that water consumes with boiler, thereby satisfy production, life and health needs, avoided after the fuel combustion pollution atmosphere with hot water; In addition; a large amount of used heat that the handpiece Water Chilling Units of the central air-conditioning in these places produces when refrigeration carry via the refrigeration working medium of high temperature, high pressure; be absorbed and used fully through described high pressure condenser; thereby having significantly reduced waste heat is discharged in the outdoor air; therefore both saved a large amount of energy and also can not cause thermal pollution outdoor air, thus energy savings of the present invention and resource, environmentally safe, can reclaim and make full use of unit waste heat, protect environment, integrated operation expense low.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes handpiece Water Chilling Units, cooling water recirculation system, computer automatic control device, described handpiece Water Chilling Units comprises compressor 1, condenser 2, expansion valve 3, evaporimeter 4 and successively by the refrigeration working medium pipeline 100 composition refrigeration cycle that is connected, described cooling water recirculation system comprises condenser 2, cooling tower 5, cooling water pump 16 and successively by the cooling water cycle water pipe 500 composition cooling water circulation loop that is connected, the energy-conservation unit of described full heat reclamation type hot and cold water also comprises high pressure condenser 6, heat exchanger 7, pressure transmitter 9, pressure-regulating valve 15, flow regulator 10,11, temperature transmitter 12,13, non-return valve 14, water circulating pump 17, cold water inlet road 200, I hot water line 300, II hot water line 400, described high pressure condenser 6 inserts the refrigeration working medium pipeline 100 between described compressor 1 outlet and the described condenser 2, described pressure transmitter 9, described pressure-regulating valve 15 inserts the refrigeration working medium pipeline 100 between described high pressure condenser 6 and the described condenser 2 respectively, described cold water inlet road 200 is respectively by described flow regulator 10,11 insert described high pressure condenser 6, the cold side inlet of described heat exchanger 7, described I hot water line 300, described II hot water line 400 is connected to described high pressure condenser 6 respectively, the cold side outlet of described heat exchanger 7, described temperature transmitter 12,13 are connected on described II hot water line 400 respectively, on the described I hot water line 300, advancing of described water circulating pump 17, outlet respectively with the coolant outlet of described condenser 2, the hot side-entrance of described heat exchanger 7 is connected, the advancing of described non-return valve 14, the hot side outlet of outlet and described heat exchanger 7, the cooling water inlet of described condenser 2 is connected.
Handpiece Water Chilling Units of the present invention can also provide the domestic hot-water in refrigeration, its main heat transfer process is as follows: the high temperature that comes out from described compressor 1, the refrigeration working medium of high pressure at first carry out high pressure condensation heat release for the first time in described high pressure condenser 6, then carry out condensation heat release for the second time again in described condenser 2; Refrigeration working medium in described high pressure condenser 6, carry out the high pressure condensation for the first time in the exothermic process heat absorbed by the cold water of described high pressure condenser 6 and heat up, make from the described high pressure condenser 6 hot water I that comes out, by kind of refrigeration cycle pressure-the enthalpy relation principle as can be known, condensation heat discharging back is for main relevant with condensing pressure with the height of its heat-shift medium temperature, the condensing pressure height, condensation temperature height then, otherwise it is then low, the present invention gathers pressure signal by described pressure transmitter 9, regulate the described pressure-regulating valve 15 of control by described computer automatic control device and regulate condensing pressure, guarantee under the pairing condensation temperature of design conditions, promptly guarantee under the situation of full recuperation of heat, heat energy is used according to the different pressure classification of control, to satisfy user's different demands, produce the described hot water I that different temperatures requires, described hot water I temperature can be regulated as required even can be produced boiling water; Refrigeration working medium carries out the cooling water absorption that heat is circulated in the condensation exothermic process second time and heats up in described condenser 2 and described heat exchanger 7 in described condenser 2, high-temperature cooling water after the intensification carries out heat exchange with cold water in described heat exchanger 7, cold water can make hot water II after described heat exchanger 7 flows out, the temperature of described hot water II is 35~40 ℃; From above process as seen, the present invention can carry out the classification utilization with the heat that reclaims, in the temperature range of design, the user can select the hot water of different temperatures, easy to use, the domestic type product can allow the user just commonly used cold in, the domestic hot-water can be provided, boiling water can also be provided, ensure the desired condensation temperature of design simultaneously, thereby guarantee the normal operation of whole kind of refrigeration cycle, therefore, produce hot water and hot water temperature's free adjustment, when reclaiming used heat, make this unit can improve compressor efficiency but the present invention can all reclaim and make full use of the used heat of unit, therefore comprehensive Energy Efficiency Ratio height, energy savings.
The present invention is in the energy recovery design, overcome the contradiction that heat recovery equipment in the past can not get both on temperature and recuperation of heat amount, the hot water that reclaims after exchanging is divided into base load shelves water temperature (described hot water II) and free shelves (described hot water I) water temperature, the normal cooling operation of the equipment that can guarantee like this, again can be on the full basis of reclaiming of heat energy, add personalized selection, the user can select corresponding water temperature according to the needs of oneself.
The present invention can be widely used in the air conditioner energy saving field.

Claims (1)

1. energy-conservation unit of full heat reclamation type hot and cold water, comprise handpiece Water Chilling Units, cooling water recirculation system, computer automatic control device, described handpiece Water Chilling Units comprises compressor (1), condenser (2), expansion valve (3), evaporimeter (4) and successively by refrigeration working medium pipeline (100) the composition refrigeration cycle that is connected, described cooling water recirculation system comprises condenser (2), cooling tower (5), cooling water pump (16) and successively by cooling water cycle water pipe (500) the composition cooling water circulation loop that is connected, it is characterized in that: the energy-conservation unit of described full heat reclamation type hot and cold water also comprises high pressure condenser (6), heat exchanger (7), pressure transmitter (9), pressure-regulating valve (15), flow regulator (10,11), temperature transmitter (12,13), non-return valve (14), water circulating pump (17), cold water inlet road (200), I hot water line (300), II hot water line (400), described high pressure condenser (6) inserts the refrigeration working medium pipeline (100) between described compressor (1) outlet and the described condenser (2), described pressure transmitter (9), described pressure-regulating valve (15) inserts the refrigeration working medium pipeline (100) between described high pressure condenser (6) and the described condenser (2) respectively, described cold water inlet road (200) is respectively by described flow regulator (10,11) insert described high pressure condenser (6), the cold side inlet of described heat exchanger (7), described I hot water line (300), described II hot water line (400) is connected to described high pressure condenser (6) respectively, the cold side outlet of described heat exchanger (7), described temperature transmitter (12,13) be connected on described II hot water line (400) respectively, on the described I hot water line (300), advancing of described water circulating pump (17), outlet respectively with the coolant outlet of described condenser (2), the hot side-entrance of described heat exchanger (7) is connected, the advancing of described non-return valve (14), the hot side outlet of outlet and described heat exchanger (7), the cooling water inlet of described condenser (2) is connected.
CN2006101228044A 2006-10-17 2006-10-17 All-heat reclamation type cold-hot water energy-saving machine set Active CN101165429B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110542254B (en) * 2019-08-30 2020-09-01 珠海格力电器股份有限公司 Water chilling unit, inlet and outlet water pressure adjusting method thereof and air conditioning system
CN110595063A (en) * 2019-09-16 2019-12-20 珠海格力电器股份有限公司 Device and method for realizing controllable heat recovery temperature of unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001055647A1 (en) * 2000-01-26 2001-08-02 Isola Del Condizionatore S.R.L. An air-conditioner with heat recovery
CN2588269Y (en) * 2002-11-28 2003-11-26 福建神舟电子信息技术有限公司 Central heating waste heat recovery and water system energy-saving controller
CN200968691Y (en) * 2006-10-17 2007-10-31 珠海慧生能源技术发展有限公司 Full heat recovery type cold and hot water energy-saving set

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001055647A1 (en) * 2000-01-26 2001-08-02 Isola Del Condizionatore S.R.L. An air-conditioner with heat recovery
CN2588269Y (en) * 2002-11-28 2003-11-26 福建神舟电子信息技术有限公司 Central heating waste heat recovery and water system energy-saving controller
CN200968691Y (en) * 2006-10-17 2007-10-31 珠海慧生能源技术发展有限公司 Full heat recovery type cold and hot water energy-saving set

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Denomination of invention: All-heat reclamation type cold-hot water energy-saving machine set

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